CN108298591A - A kind of synthetic method of hexagon iron titanate nanometer sheet material and application - Google Patents

A kind of synthetic method of hexagon iron titanate nanometer sheet material and application Download PDF

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CN108298591A
CN108298591A CN201810331771.7A CN201810331771A CN108298591A CN 108298591 A CN108298591 A CN 108298591A CN 201810331771 A CN201810331771 A CN 201810331771A CN 108298591 A CN108298591 A CN 108298591A
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sheet material
nanometer sheet
hexagon
iron
iron titanate
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CN108298591B (en
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马军
汪达
徐浩丹
卢晓辉
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Harbin Institute of Technology
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Abstract

A kind of synthetic method of hexagon iron titanate nanometer sheet material and application, the present invention relates to technical field of nano material, more particularly to the synthetic method of a kind of hexagon iron titanate nanometer sheet material and application.The invention solves existing calcining preparation method, that there are grain sizes is big, and easy-sintering, Adsorption is few, and the technical issues of huge energy consumption.Method:By titanium salt and iron salt dissolved in deionized water, organic base is added, precipitating reagent is prepared and is added in titanium salt and iron salt solutions, generate iron hydroxide titanium precursors, heating in water heating kettle is transferred to and obtains hexagon iron titanate nanometer sheet material.The material is made in lower reaction temperature and in the shorter reaction time, and crystallinity is high, and pattern is clear, uniform particle sizes, has good application and industrialization prospect.The present invention is used to prepare a kind of hexagon iron titanate nanometer sheet material, and as in degradation of contaminant in degradation of contaminant in catalyst application under visible light degradation of contaminant, catalytic ozonation and heterogeneous class Fenton.

Description

A kind of synthetic method of hexagon iron titanate nanometer sheet material and application
Technical field
The present invention relates to technical field of nano material, more particularly to a kind of synthesis side of hexagon iron titanate nanometer sheet material Method and application.
Background technology
The metal oxide semiconductor of perovskite structure is environmental-friendly because having stable structure, and safety height etc. is universal special Property, it is widely used in industrial production at present.And other special characteristics that it has, if photo absorption performance is strong, capacity is big, recycles the longevity Life is long etc. so that it can be applied to photocatalysis, electrode material, in the development field of battery material.
The native metal element overwhelming majority in perovskite structure is that stable, new multicomponent Ca-Ti ore type is compound Oxide can be formed by replacing or adulterating position, thus with stable physical and chemical performance.Wherein iron titanate (FeTiO3) as one kind commonly used in perovskite family, have and prepares raw material and be easy to get, safe and non-toxic, environmental-friendly, band The features such as gap is moderate, and photo-catalysis capability is strong, and surface metal active sites are more can realize a variety of photocatalysis and other water process with it Purposes, such as photolysis water hydrogen, photo-catalyst, photocatalytic pollutant degradation etc..Additionally due to metatitanic acid iron surface is with abundant Metal active centres, surface hydroxyl and surface strong lewis acid position isoreactivity point, while can also be applied to various advanced Oxidation process, such as catalytic ozonation in the water treatment procedures such as heterogeneous class Fenton, there is tremendous economic effect and society to imitate Benefit.In the prior art, the iron titanate of most of synthesis is all made by high-temperature calcination, and grain size is big, easy-sintering, surface-active Position is few, and huge energy consumption.
Invention content
The invention solves existing calcining preparation method, that there are grain sizes is big, and easy-sintering, Adsorption is few, and huge energy consumption The technical issues of, and synthetic method and the application of a kind of hexagon iron titanate nanometer sheet material are provided.
A kind of synthetic method of hexagon iron titanate nanometer sheet material, specifically carries out according to the following steps:
One, titanium salt and molysite are put into deionized water and are dissolved, obtain titanium salt and iron salt solutions,
Two, organic base is added in the titanium salt and iron salt solutions that step 1 obtains, obtains mixed liquor;
Three, caustic alkali is put into deionized water and is dissolved, obtain precipitating reagent;
Four, the precipitating reagent that step 3 obtains is added in the mixed liquor that step 2 obtains, reaction generates hydroxide ferrotitanium Presoma;
Five, the presoma that step 4 obtains is transferred in water heating kettle, is heated, carry out hydro-thermal reaction, washing and drying obtains The hexagon iron titanate nanometer sheet material.
The hexagon iron titanate nanometer sheet material is as in catalyst under visible light degradation of contaminant, catalytic ozonation Application in degradation of contaminant and heterogeneous class Fenton in degradation of contaminant.
The beneficial effects of the invention are as follows:Hydro-thermal method is a kind of material preparation method of green energy conservation, and this method is using sealing The form of heating generates pressure in reaction kettle, therefore can be obtained the preferable nanometer sheet of crystallinity at a lower temperature Material, and since reaction carries out in the liquid phase, the material granule and grain size generated is all relatively uniform, and specific surface area is larger, Active sites are abundant.Pattern control is added in hydroxide ion reacts precipitation process with titanium salt and iron salt solutions in the present invention Preparation can generate strong mating reaction so that iron hydroxide titanium precursors are according to certain orientation with iron hydroxide titanium precursors Growth, final crystallization generate hexagon iron titanate nanometer sheet material.The material can be in lower reaction temperature and shorter anti- Seasonable interior obtained, crystallinity is high, and pattern is clear, uniform particle sizes, has good application and industrialization prospect.
The present invention proposes a kind of synthetic method of simple, maneuverable hexagon iron titanate nanometer sheet material.This method Using a step hydrothermal synthesis method, iron titanate nanometer sheet pattern is carried out by adjusting the concentration of organic base pattern controlling agent in synthesis Regulation and control, compared with common iron titanate calcining preparation method, the iron titanate nanometer sheet material of present invention gained is without numerous excessively Trivial grinding is sized mixing, and in the case of high-temperature calcination, only realizes iron titanate nanometer by the way that organic base pattern controlling agent is simply added The regulation and control of piece pattern obtain even size distribution, the nanometer sheet of pattern complete display.Six sides obtained by above-mentioned preparation method Shape iron titanate nanometer sheet material can be applied to catalyzing and degrading pollutant by visible light, catalytic ozonation degradation of contaminant and it is non- Similar Fenton degradation of contaminant.Pass through N2Adsorption/desorption characterizes, and measures hexagon iron titanate nanometer sheet material prepared by the present invention Specific surface area is 12.2m2/ g, boundary and corner angle are clear, and for diameter in 500nm or so, thickness is 50nm or so.This hair prepared The hexagon iron titanate nanometer sheet material of bright preparation can remove about 75% parachlorophenol at 90 minutes;240 minutes degradable About 80% methylene blue.
The present invention is used to prepare a kind of hexagon iron titanate nanometer sheet material, the hexagon iron titanate nanometer sheet material conduct Catalyst is applied in degradation of contaminant, catalytic ozonation under visible light and is degraded in degradation of contaminant and heterogeneous class Fenton In pollutant.
Description of the drawings
Fig. 1 is the X-ray diffraction spectrogram of hexagon iron titanate nanometer sheet material prepared by embodiment one;
Fig. 2 is the scanning electron microscope (SEM) photograph of hexagon iron titanate nanometer sheet material prepared by embodiment one;
Fig. 3 is the curve graph in photocatalytic pollutant degradation system Methylene Blue concentration and reaction time, wherein ■ generations The degradation rate of methylene blue when table is not added with catalyst, ● represent methylene blue when iron titanate made from commercially available high-temperature calcination is added Degradation rate, ▲ represent be added embodiment 1 in prepare hexagon iron titanate nanometer sheet material when methylene blue degradation rate;
Fig. 4 is the curve graph of parachlorophenol TOC concentration and reaction time in catalytic ozonation pollution degradation objects system, Wherein ■ represents the TOC degradation rates of chlorophenol when being not added with catalyst, ● it represents and iron titanate made from commercially available high-temperature calcination is added When parachlorophenol TOC degradation rate, ▲ represent be added embodiment one prepare hexagon iron titanate nanometer sheet material when to chlorine The degradation rate of the TOC of phenol;
Fig. 5 is the curve graph in heterogeneous class Fenton pollution degradation objects system Methylene Blue concentration and reaction time, Middle ■ represents the degradation rate of methylene blue when being not added with catalyst, ● it represents sub- when iron titanate made from commercially available high-temperature calcination is added The degradation rate of methyl blue, the degradation of methylene blue when hexagon iron titanate nanometer sheet material prepared by embodiment one is added in ▲ representative Rate.
Specific implementation mode
Technical solution of the present invention is not limited to the specific implementation mode of act set forth below, further include each specific implementation mode it Between arbitrary combination.
Specific implementation mode one:A kind of synthetic method of hexagon iron titanate nanometer sheet material of present embodiment, feature It is that this method specifically carries out according to the following steps:
One, titanium salt and molysite are put into deionized water and are dissolved, obtain titanium salt and iron salt solutions,
Two, organic base is added in the titanium salt and iron salt solutions that step 1 obtains, obtains mixed liquor;
Three, caustic alkali is put into deionized water and is dissolved, obtain precipitating reagent;
Four, the precipitating reagent that step 3 obtains is added in the mixed liquor that step 2 obtains, reaction generates hydroxide ferrotitanium Presoma;
Five, the presoma that step 4 obtains is transferred in water heating kettle, is heated, carry out hydro-thermal reaction, washing and drying obtains The hexagon iron titanate nanometer sheet material.
Specific implementation mode two:The present embodiment is different from the first embodiment in that:Titanium salt is metatitanic acid in step 1 Four butyl esters, titanyl sulfate, hexafluorotitanic acid, potassium fluotitanate, ammonium titanium fluoride, tetraethyl titanate, titanium tetrachloride, titanium trichloride or oxalic acid Titanium potassium.It is other same as the specific embodiment one.
Specific implementation mode three:The present embodiment is different from the first and the second embodiment in that:Molysite is in step 1 Ferric nitrate, iron chloride, frerrous chloride, ferric sulfate, ferrous sulfate, ferric acetate, ferrous oxalate or iron ammonium sulfate.It is other with it is specific Embodiment one or two is identical.
Specific implementation mode four:Unlike one of present embodiment and specific implementation mode one to three:Have in step 2 Machine alkali is tetramethylammonium hydroxide, tetraethyl ammonium hydroxide or tetrapropylammonium hydroxide.Other and specific implementation mode one to three One of it is identical.
Specific implementation mode five:Unlike one of present embodiment and specific implementation mode one to four:Step 3 causticity The amount ratio of hydroxyl and organic base in step 2 is 1mol: 1mmol~20mmol in alkali.It is other with specific implementation mode one to One of four is identical.
Specific implementation mode six:Unlike one of present embodiment and specific implementation mode one to five:Step 3 causticity The amount ratio of molysite is 1mol: 1mmol~20mmol in hydroxyl and step 1 in alkali, hydroxyl and step in step 3 caustic alkali The amount ratio of titanium salt is 1mol: 1mmol~20mmol in rapid one.It is other identical as one of specific implementation mode one to five.
Specific implementation mode seven:Unlike one of present embodiment and specific implementation mode one to six:Iron in step 1 Salt is ferrous sulfate, concentration of iron 10mmol/L.It is other identical as one of specific implementation mode one to six.
Specific implementation mode eight:Unlike one of present embodiment and specific implementation mode one to seven:Titanium in step 1 Salt is titanium sulfate, a concentration of 10mmol/L of titanium.It is other identical as one of specific implementation mode one to seven.
Specific implementation mode nine:Unlike one of present embodiment and specific implementation mode one to eight:Have in step 2 Machine alkali is tetramethylammonium hydroxide, a concentration of 10mmol/L.It is other identical as one of specific implementation mode one to eight.
Specific implementation mode ten:Unlike one of present embodiment and specific implementation mode one to nine:Step 3 causticity Hydroxyl is 1~5mol in alkali.It is other identical as one of specific implementation mode one to nine.
Specific implementation mode 11:Unlike one of present embodiment and specific implementation mode one to ten:Step 3 is severe Property alkali be potassium hydroxide, a concentration of 4mol/L.It is other identical as one of specific implementation mode one to ten.
Specific implementation mode 12:Present embodiment is unlike specific implementation mode one to one of 11:Step 5 Middle hydrothermal temperature be 160~220 DEG C, the hydro-thermal reaction time be 12~for 24 hours.It is other with specific implementation mode one to 11 it One is identical.
Specific implementation mode 13:Present embodiment is unlike specific implementation mode one to one of 12:Step 5 Middle hydrothermal temperature is 180 DEG C, the hydro-thermal reaction time 18h.It is other identical as specific implementation mode one to one of 12.
Specific implementation mode 14:Present embodiment is unlike specific implementation mode one to one of 13:Step 5 The product that middle hydro-thermal reaction obtains is precipitated using gravity or centrifugal treating, by obtained sediment through deionized water and absolute ethyl alcohol The process of washing.It is other identical as specific implementation mode one to one of 13.
Specific implementation mode 15:Present embodiment is unlike specific implementation mode one to one of 14:Step 5 The washing process for the product that middle hydro-thermal reaction obtains is 2 absolute ethyl alcohols, 3 deionized waters.Other and specific implementation mode one It is identical to one of 14.
Specific implementation mode 16:A kind of hexagon iron titanate nanometer sheet material described in specific implementation mode one, which is used as, urges Agent degradation of contaminant in degradation of contaminant and heterogeneous class Fenton in degradation of contaminant, catalytic ozonation under visible light In application.
Beneficial effects of the present invention are verified using following embodiment:
Embodiment one:
A kind of synthetic method of hexagon iron titanate nanometer sheet material of the present embodiment, it is characterised in that this method specifically by with Lower step carries out:
One, butyl titanate and ferrous sulfate are put into deionized water and are dissolved, obtain titanium salt and iron salt solutions;Wherein titanium Sour four butyl esters a concentration of 10mmol/L, a concentration of 10mmol/L of ferrous sulfate;
Two, organic base tetraethyl ammonium hydroxide is added in the titanium salt and iron salt solutions that step 1 obtains, is mixed Liquid;Wherein a concentration of 10mmol/L of tetraethyl ammonium hydroxide;
Three, caustic alkali potassium hydroxide is put into deionized water and is dissolved, obtain precipitating reagent;Concentration of potassium hydroxide is 5mol/ L;
Four, the precipitating reagent that step 3 obtains is added in the mixed liquor that step 2 obtains, reaction generates hydroxide ferrotitanium Presoma;
Five, the presoma that step 4 obtains is transferred in water heating kettle, is heated, carry out hydro-thermal reaction, hydrothermal temperature It it is 180 DEG C, the hydro-thermal reaction time 16h, washing and drying obtains the hexagon iron titanate nanometer sheet material.
Hexagon iron titanate nanometer sheet material manufactured in the present embodiment is characterized:Pass through N2Adsorption/desorption characterizes, and surveys It is 12.2m to obtain specific surface area2/g.It is tested by power spectrum, the results showed that catalysis material hexagon iron titanate nanometer sheet material is made Element ratio be shown in Table 1:
Table 1
Prove that the catalyst material is rich in ferrotitanium activated centre, and the element ratio of ferrotitanium oxygen and iron titanate (FeTiO3) kiss It closes.Powder x-ray diffraction (XRD) is carried out to obtained hexagon iron titanate nanometer sheet material to detect, the results are shown in Figure 1, Peak in figure and iron titanate (FeTiO3) JCPDS cards 71-1140 exactly match, had no in figure other miscellaneous peaks presence, explanation Prepared hexagon iron titanate nanometer sheet material is pure iron titanate (FeTiO3), the diffraction maximum in figure is sharp, and diffracted intensity is high, Illustrate that prepared hexagon iron titanate nanometer sheet material crystallinity is high.Fig. 2 is the hexagon iron titanate nanometer sheet material prepared Scanning electron microscope (SEM) photograph, it can be seen from the figure that iron titanate (FeTiO obtained3) it is hexagonal nanosheet, boundary and corner angle are clear Clear, for diameter in 500nm or so, thickness is 50nm or so.
The photocatalytic pollutant degradation effect of obtained hexagon iron titanate nanometer sheet material in the present embodiment:
Hexagon iron titanate nanometer sheet material manufactured in the present embodiment is put into photocatalytic reaction device, reaction condition is PH=6.8, catalyst concn 1g/L.Using methylene blue solution simulating pollution object as waste water from dyestuff, measure 100mL's every time 50mg/L methylene blue solutions carry out photocatalytic degradation under the irradiation of 500W xenon lamps in beaker to it, often react 30 minutes Methylene blue solution is taken in beaker afterwards, takes liquid to be added in cuvette after membrane filtration, uses UV spectrophotometer measuring The photocatalytic degradation curve of methylene blue solution reaction can be obtained in the absorbance of methylene blue solution (see Fig. 3).In figure 3, ■ The degradation rate of methylene blue when being not added with catalyst is represented, ● represent methylene when iron titanate made from commercially available high-temperature calcination is added Blue degradation rate, the degradation rate of methylene blue when the hexagon iron titanate nanometer sheet material prepared in embodiment 1 is added in ▲ representative. Fig. 3 the result shows that, when reacted between be 300 minutes when, not plus catalyst in the case of methylene blue it is non-degradable, commercially available high temperature is forged Iron titanate made from burning method can degrade at 300 minutes about 45% methylene blue, and the hexagon titanium prepared in embodiment 1 Sour iron nanometer sheet material can make methylene blue decolourize completely at 300 minutes.
The catalytic ozonation degradation of contaminant effect of obtained hexagon iron titanate nanometer sheet material in the present embodiment
Identical in three specifications, the commercially available high temperature for filling homogenous quantities in the cylindrical reactor that effective volume is 1.5L respectively is forged Hexagon iron titanate nanometer sheet material and be added without catalyst prepared by iron titanate made from burning method, embodiment one, identical Parachlorophenol simulation micro-polluted water (parachlorophenol concentration 30mg/L) is handled, process conditions under the conditions of operating parameter:Instead It is 20 degrees Celsius, pH 6.8, ozone dosage 3mg/min to answer temperature, 90 minutes reaction time.
Different catalytic ozonation agent catalytic effects are shown in Fig. 4.In Fig. 4, ■ represents the TOC drops of chlorophenol when being not added with catalyst Solution rate, ● the degradation rate of the TOC of parachlorophenol when iron titanate made from commercially available high-temperature calcination is added is represented, ▲ represent addition in fact The degradation rate of the TOC of parachlorophenol when applying the hexagon iron titanate nanometer sheet material of the preparation of example one.Fig. 4 the result shows that, work as reaction When time is 90 minutes, plus in the case of catalyst the degradation rate of the TOC of parachlorophenol not can only achieve 15%, and commercially available high temperature is forged Iron titanate made from burning method can remove about 40% parachlorophenol at 90 minutes, and the iron titanate prepared in embodiment 1 is received Rice sheet material can remove about 75% parachlorophenol at 90 minutes.
The heterogeneous class Fenton oxidation degradation of contaminant effect of obtained hexagon iron titanate nanometer sheet material in the present embodiment Fruit:
Hexagon iron titanate nanometer sheet material prepared by embodiment one is put into photocatalytic reaction device, reaction condition is PH=3, catalyst concn 1g/L.Using methylene blue solution simulating pollution object as waste water from dyestuff, measure 100mL's every time 50mg/L methylene blue solutions are in beaker, and the hydrogen peroxide that 10mmol/L is added carries out it heterogeneous class Fenton degradation, per anti- After answering 30 minutes, methylene blue solution is taken in beaker, takes liquid to be added in cuvette after membrane filtration, with ultraviolet spectrometry light The absorbance of degree meter detection methylene blue solution, can be obtained the photocatalytic degradation curve of methylene blue solution reaction (see Fig. 5). In Fig. 5, ■ represents the degradation rate of methylene blue when being not added with catalyst, ● it represents and iron titanate made from commercially available high-temperature calcination is added When methylene blue degradation rate, ▲ represent methylene blue when hexagon iron titanate nanometer sheet material prepared by embodiment one is added Degradation rate.Fig. 5 the result shows that, when reacted between be 240 minutes when, not plus catalyst in the case of methylene blue it is almost non-degradable, Iron titanate made from commercially available high-temperature calcination can degrade at 240 minutes about 40% methylene blue, and made in embodiment 1 Standby hexagon iron titanate nanometer sheet material degradable about 80% methylene blue at 240 minutes.
In the above experiment, pollutant is not intended to limit the present invention using dyestuff methylene blue and parachlorophenol The pollutant of degradation is methylene blue and parachlorophenol, and method of the invention is suitable for all kinds of dyestuffs of degrading, pesticide and other Persistence organic pollutant etc..
Embodiment two:
A kind of synthetic method of hexagon iron titanate nanometer sheet material of the present embodiment, it is characterised in that this method specifically by with Lower step carries out:
One, titanyl sulfate and iron ammonium sulfate are put into deionized water and are dissolved, obtain titanium salt and iron salt solutions;Wherein sulphur Sour a concentration of 2mmol/L of oxygen titanium, ferrous ammonium sulfate concentration 2mmol/L;
Two, organic base tetraethyl ammonium hydroxide is added in the titanium salt and iron salt solutions that step 1 obtains, is mixed Liquid;Wherein a concentration of 5mmol/L of tetraethyl ammonium hydroxide;
Three, caustic alkali sodium hydroxide is put into deionized water and is dissolved, obtain precipitating reagent;Naoh concentration is 1mol/ L;
Four, the precipitating reagent that step 3 obtains is added in the mixed liquor that step 2 obtains, reaction generates hydroxide ferrotitanium Presoma;
Five, the presoma that step 4 obtains is transferred in water heating kettle, is heated, carry out hydro-thermal reaction, hydrothermal temperature It it is 200 DEG C, the hydro-thermal reaction time 12h, washing and drying obtains the hexagon iron titanate nanometer sheet material.
Embodiment three:
A kind of synthetic method of hexagon iron titanate nanometer sheet material of the present embodiment, it is characterised in that this method specifically by with Lower step carries out:
One, titanium tetrachloride and ferrous oxalate are put into deionized water and are dissolved, obtain titanium salt and iron salt solutions;Wherein tetrachloro Change a concentration of 20mmol/L of titanium, a concentration of 20mmol/L of ferrous oxalate;
Two, organic base tetrapropylammonium hydroxide is added in the titanium salt and iron salt solutions that step 1 obtains, is mixed Liquid;Wherein a concentration of 40mmol/L of tetrapropylammonium hydroxide;
Three, caustic alkali sodium hydroxide is put into deionized water and is dissolved, obtain precipitating reagent;Naoh concentration is 2mol/ L;
Four, the precipitating reagent that step 3 obtains is added in the mixed liquor that step 2 obtains, reaction generates hydroxide ferrotitanium Presoma;
Five, the presoma that step 4 obtains is transferred in water heating kettle, is heated, carry out hydro-thermal reaction, hydrothermal temperature It it is 160 DEG C, the hydro-thermal reaction time is for 24 hours that washing and drying obtains the hexagon iron titanate nanometer sheet material.

Claims (10)

1. a kind of synthetic method of hexagon iron titanate nanometer sheet material, it is characterised in that this method specifically according to the following steps into Row:
One, titanium salt and molysite are put into deionized water and are dissolved, obtain titanium salt and iron salt solutions,
Two, organic base is added in the titanium salt and iron salt solutions that step 1 obtains, obtains mixed liquor;
Three, caustic alkali is put into deionized water and is dissolved, obtain precipitating reagent;
Four, the precipitating reagent that step 3 obtains is added in the mixed liquor that step 2 obtains, reaction generates iron hydroxide titanium precursor Body;
Five, the presoma that step 4 obtains is transferred in water heating kettle, is heated, carry out hydro-thermal reaction, washing and drying obtains described Hexagon iron titanate nanometer sheet material.
2. a kind of synthetic method of hexagon iron titanate nanometer sheet material according to claim 1, it is characterised in that step In one titanium salt be butyl titanate, titanyl sulfate, hexafluorotitanic acid, potassium fluotitanate, ammonium titanium fluoride, tetraethyl titanate, titanium tetrachloride, Titanium trichloride or titanium potassium oxalate.
3. a kind of synthetic method of hexagon iron titanate nanometer sheet material according to claim 1, it is characterised in that step Molysite is ferric nitrate, iron chloride, frerrous chloride, ferric sulfate, ferrous sulfate, ferric acetate, ferrous oxalate or iron ammonium sulfate in one.
4. a kind of synthetic method of hexagon iron titanate nanometer sheet material according to claim 1, it is characterised in that step Organic base is tetramethylammonium hydroxide, tetraethyl ammonium hydroxide or tetrapropylammonium hydroxide in two.
5. a kind of synthetic method of hexagon iron titanate nanometer sheet material according to claim 1, it is characterised in that step The amount ratio of hydroxyl and organic base in step 2 is 1mol: 1mmol~20mmol in three caustic alkali.
6. a kind of synthetic method of hexagon iron titanate nanometer sheet material according to claim 1, it is characterised in that step The amount ratio of molysite is 1mol: 1mmol~20mmol in hydroxyl and step 1 in three caustic alkali, hydrogen-oxygen in step 3 caustic alkali The amount ratio of root and titanium salt in step 1 is 1mol: 1mmol~20mmol.
7. a kind of synthetic method of hexagon iron titanate nanometer sheet material according to claim 1, it is characterised in that step Hydroxyl is 1~5mol in three caustic alkali.
8. a kind of synthetic method of hexagon iron titanate nanometer sheet material according to claim 1, it is characterised in that step In five hydrothermal temperature be 160~220 DEG C, the hydro-thermal reaction time be 12~for 24 hours.
9. a kind of synthetic method of hexagon iron titanate nanometer sheet material according to claim 1, it is characterised in that step The product that hydro-thermal reaction obtains in five is precipitated using gravity or centrifugal treating, by obtained sediment through deionized water and anhydrous second The process of alcohol washing.
10. a kind of application of hexagon iron titanate nanometer sheet material as described in claim 1, it is characterised in that the hexagon titanium Sour iron nanometer sheet material as degradation of contaminant in catalyst under visible light degradation of contaminant, catalytic ozonation and it is non- Application in similar Fenton in degradation of contaminant.
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CN110841640A (en) * 2019-11-22 2020-02-28 福州大学 Two-dimensional titanium ferrite nanosheet, preparation method thereof and application thereof in hydrogen sulfide selective catalytic oxidation
CN113797928A (en) * 2021-11-16 2021-12-17 北京大臻科技有限公司 Ortho-para hydrogen conversion catalyst for liquid hydrogen conversion and preparation method thereof
CN115155609A (en) * 2022-06-22 2022-10-11 广东中膜科技有限公司 Manganese-doped iron titanate granular ozone catalyst and preparation method and application thereof
CN115463658A (en) * 2022-09-14 2022-12-13 广东卓信环境科技股份有限公司 Preparation method and application of perovskite/sludge carbon composite catalyst

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CN102471861A (en) * 2009-07-07 2012-05-23 苏舍美特科公司 Iron-based spray material, method for producing a spray material, thermal spray layer, and spraying method
CN102092782A (en) * 2011-04-01 2011-06-15 福州大学 Hydrothermal one-step synthesis method of cadmium titanate

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110841640A (en) * 2019-11-22 2020-02-28 福州大学 Two-dimensional titanium ferrite nanosheet, preparation method thereof and application thereof in hydrogen sulfide selective catalytic oxidation
CN113797928A (en) * 2021-11-16 2021-12-17 北京大臻科技有限公司 Ortho-para hydrogen conversion catalyst for liquid hydrogen conversion and preparation method thereof
CN115155609A (en) * 2022-06-22 2022-10-11 广东中膜科技有限公司 Manganese-doped iron titanate granular ozone catalyst and preparation method and application thereof
CN115155609B (en) * 2022-06-22 2024-03-01 广东中膜科技有限公司 Manganese-doped ferric titanate granular ozone catalyst and preparation method and application thereof
CN115463658A (en) * 2022-09-14 2022-12-13 广东卓信环境科技股份有限公司 Preparation method and application of perovskite/sludge carbon composite catalyst

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